Apparatus for treatment of continuous web material

Details Apparatus for treatment of continuous web material Apparatus for treatment of continuous web material

1982-07-23

1986-01-07

Christian, Leonard D.

Advancing material of indeterminate length

By intermittent material-mover

Stored material-movement-derived energy provides moving force

226139, B65H 2004

Patent

active

045629471

ABSTRACT:
Treatment apparatus for continuous web for producing diecut blanks (for example) has two sets of treatment rolls and the speed of these is adjusted so that although driven at web speed during the treatment portion of each cycle they are accelerated and retarded (or vice versa) during the non-treatment portion of each cycle so as to synchronize the treatment forms on the rolls with the required web areas and avoid wastage. The speed variation is by control of the drive motors for the rolls, but using roll-carried cams connected to gas springs so that energy can be absorbed during retardation and released during acceleration to supplement the motors and thus enable smaller motors to be used.

REFERENCES:
patent: 3017796 (1962-01-01), Auer et al.
patent: 3371834 (1968-03-01), Willits et al.
patent: 4451834 (1984-05-01), Nakajima et al.

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